Display screen or portion thereof with icon



FIG. 1 is a front view of a display screen or portion thereof with icon,showing my new design;

FIG. 2 is a front view of a display screen or portion thereof with icon,showing an alternative embodiment of the new design; and,

FIG. 3 is a front view of a display screen or portion thereof with icon,showing an alternative embodiment of the new design.

The dot-dash broken lines illustrating portions of the display screenare included for the purpose of illustrating environmental structure andform no part of the claimed design.

CLAIM The ornamental design for a display screen or portion thereof withicon, as shown and described.